Email them the moment it’s back.

Yes. For variable products the form appears when the customer selects an out-of-stock variation, and it notifies only the people waiting for that specific variation, not everyone on the parent product.

Yes. On a grouped product a separate notify-me form appears for each out-of-stock item in the group. WooCommerce Subscriptions products are supported too, both simple and variable, using the same restock detection as regular products.

No. Sending runs in the background through Action Scheduler (bundled with WooCommerce) in batches of 50, re-queuing until everyone is notified. It re-checks that the product is still in stock before each batch, so a stock that drops back to zero mid-send does not email a sold-out product.

No. They only leave an email. Confirmation and unsubscribe both work through secure tokenized links (256-bit tokens): no login and no password anywhere in the flow.

Yes. Besides the automatic WooCommerce hook, the form ships as a shortcode ([acbis_back_in_stock_form]) and a Gutenberg block, both rendered by the same engine, so you can place it yourself when a builder’s product template does not fire the standard hook. For popups or modals away from the product page, add mode="product".

Yes. Submissions go through AJAX and the form fetches a fresh security token at submit time, so it keeps working on stores with full-page edge caching (Cloudflare, Kinsta and similar).

No. Restock emails are sent from your own site (wp_mail / your SMTP), and subscriber data stays in your database. The IP used for rate limiting is stored hashed. The plugin only contacts Freemius for license validation and update checks, never with your customers’ data, and only if you opt in or activate a license.

Any standard WooCommerce stock change back to “in stock”: editing the product in wp-admin, a bulk CSV import, an inventory sync from an ERP or POS over the API, or WP-CLI. The plugin listens to WooCommerce’s own stock hooks, so it does not matter how the stock came back.

Free is the whole loop: the notify-me form on simple, variable, grouped and subscription products, double opt-in, consent, the automatic restock email, background sending, the subscriber list with filters, and one-click unsubscribe. Pro adds the tools that turn the waiting list into revenue: restock coupons, a recovered-revenue dashboard, SMS & WhatsApp via your own Twilio, sync to Klaviyo/Mailchimp, signed webhooks with Slack/Discord demand alerts, and one-click CSV export. No core feature is locked behind Pro.

No catch. The free version is a complete back-in-stock system for a real store: no subscriber cap, no daily quota, no nag screens. Pro adds the tools to act on that demand.

Nothing breaks and nothing is deleted. Every free feature keeps working forever. The Pro tools turn off while the license is lapsed and turn back on the moment you renew. Your subscribers, settings and history stay in your own database.

Only the ones you switch on, and only with your own credentials. SMS & WhatsApp (Twilio), email-marketing sync (Klaviyo/Mailchimp) and webhooks are all off by default and opt-in. An SMS or WhatsApp message goes out only to customers who gave separate phone consent. API keys are stored encrypted, and the free version never sends subscriber data anywhere.

Yes, without writing any CSS. The Appearance panel in Settings sets an accent color, an outline or solid button and how round the corners are. Every text is editable too: the intro line (or hide it), the button label and the consent wording. For full control, the form still exposes --acbis-* CSS custom properties.

Yes. The plugin declares compatibility with High-Performance Order Storage. It does not touch orders (it stores subscriptions in its own table), but the declaration keeps WooCommerce’s compatibility screen clean.

14 days, no questions asked. Email info@australcode.io with your order number and the refund is issued through Freemius, our merchant of record.